Travis reports: https://travis-ci.org/andyhhp/xen/jobs/633751811
mem_sharing.c:361:13: error: 'rmap_has_entries' defined but not used
[-Werror=unused-function]
static bool rmap_has_entries(const struct page_info *page)
^
cc1: all warnings being treated as errors
This happens in a release build (disables MEM_SHARING_AUDIT) when
CONFIG_MEM_SHARING is enabled.
Expand both trivial helpers into their single callsite.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
---
CC: Tamas K Lengyel <ta...@tklengyel.com>
v2:
* Expand, rather than mark as __maybe_unused
---
xen/arch/x86/mm/mem_sharing.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)
diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c
index ddf1f0f9f9..64dd3689df 100644
--- a/xen/arch/x86/mm/mem_sharing.c
+++ b/xen/arch/x86/mm/mem_sharing.c
@@ -351,18 +351,6 @@ static gfn_info_t *rmap_retrieve(uint16_t domain_id,
unsigned long gfn,
return NULL;
}
-/* Returns true if the rmap has only one entry. O(1) complexity. */
-static bool rmap_has_one_entry(const struct page_info *page)
-{
- return rmap_count(page) == 1;
-}
-
-/* Returns true if the rmap has any entries. O(1) complexity. */
-static bool rmap_has_entries(const struct page_info *page)
-{
- return rmap_count(page) != 0;
-}
-
/*
* The iterator hides the details of how the rmap is implemented. This
* involves splitting the list_for_each_safe macro into two steps.
@@ -531,7 +519,7 @@ static int audit(void)
}
/* Check we have a list */
- if ( (!pg->sharing) || !rmap_has_entries(pg) )
+ if ( (!pg->sharing) || rmap_count(pg) == 0 )
{
MEM_SHARING_DEBUG("mfn %lx shared, but empty gfn list!\n",
mfn_x(mfn));
@@ -1220,7 +1208,7 @@ int __mem_sharing_unshare_page(struct domain *d,
* Do the accounting first. If anything fails below, we have bigger
* bigger fish to fry. First, remove the gfn from the list.
*/
- last_gfn = rmap_has_one_entry(page);
+ last_gfn = rmap_count(page) == 1;
if ( last_gfn )
{
/*
--
2.11.0
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